Brackets and mounts
Rotating Electric Field DNA Enrichment Chamber Assembly
- Bounding box
- 197.3 × 54.5 × 15.8 mm
- Engine
- Precision B-rep
- Parameters
- 25
- Published
- August 7, 2026
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Free to download and use. See the terms.
The prompt
Create a fully parametric CAD model of a circular laboratory prototype for a rotating electric field DNA enrichment chamber. Overall body Circular transparent PMMA housing. Overall diameter: 40 mm. Overall height: 14 mm. Bottom side completely open for PCB installation. Flat upper surface. Sample chamber Centered cylindrical chamber. Diameter: 10 mm. Depth: 2.5 mm. Working volume: approximately 200 µL. Flat bottom. Smooth walls. Electrode system 16 equally spaced electrode guide holes. Angular spacing: 22.5°. Guide hole diameter: 1.0 mm. Electrode diameter: 0.9 mm. Electrode center radius: 13 mm. Electrode geometry Each electrode is removable. Each electrode consists of: 15 mm horizontal section. 90° bend. 2.5 mm vertical section entering the chamber. Only the vertical tip contacts the liquid. Horizontal section remains outside the housing for wire soldering. Guide tubes Guide holes are designed for removable electrode sleeves. Electrodes slide into the guide holes. No glue required. O-ring Create a circular O-ring groove around the sample chamber. Groove depth: 1 mm. Groove width: 1.5 mm. Bottom Bottom remains open. Include supports for future PCB mounting. No electronics. Material PMMA / Acrylic. Design goals Fully manufacturable. Injection molding friendly. 3D printable. High dimensional accuracy. Perfect radial symmetry. Parametric design. Output Generate: STEP STL Fully editable parametric CAD model. Exploded assembly.
Parameters
| Name | Value | Range |
|---|---|---|
| Housing Outer Diameter | 40 mm | 30 – 60 |
| Housing Height | 14 mm | 8 – 20 |
| Sample Chamber Diameter | 10 mm | 5 – 20 |
| Sample Chamber Depth | 2.5 mm | 1 – 5 |
| O-ring Groove Center Radius | 5.75 mm | 5 – 10 |
| O-ring Groove Width | 1.5 mm | 0.5 – 3 |
| O-ring Groove Depth | 1 mm | 0.2 – 3 |
| O-ring Cross-Section Diameter | 1.5 mm | 1 – 3 |
| Guide Hole Diameter | 1 mm | 0.5 – 2 |
| Guide Hole Center Radius | 13 mm | 10 – 18 |
| Number of Guide Holes | 16 count | 4 – 32 |
| Sleeve Outer Diameter | 1 mm | 0.8 – 2 |
| Sleeve Inner Diameter | 0.7 mm | 0.5 – 1.8 |
| Sleeve Length | 14 mm | 10 – 20 |
| Electrode Wire Diameter | 0.9 mm | 0.5 – 1.5 |
| Electrode Horizontal Length | 15 mm | 5 – 25 |
| Electrode Vertical Tip Length | 2.5 mm | 1 – 5 |
| Electrode Bend Radius | 0.5 mm | 0.2 – 2 |
| Number of Electrodes | 16 count | 2 – 32 |
| PCB Boss Diameter | 3 mm | 1 – 5 |
| PCB Boss Hole Diameter | 1.6 mm | 1 – 3 |
| PCB Boss Center Radius | 17 mm | 12 – 19 |
| PCB Boss Height | 1 mm | 0.5 – 3 |
| Number of PCB Bosses | 4 count | 2 – 8 |
| Exploded Layout Gap | 50 mm | 30 – 200 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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